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- Fixed comments in various system call handlers. Work in progress on new

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sys_privctl() call to dynamically start servers and drivers.

- Shutdown sequence slightly adjusted: called as watchdog timer to let the
  busy sys_abort() call from the PM return first.

- Changed umap_bios() to have more restrictive check: BIOS memory is now
  allowed in BIOS_MEM_BEGIN to END (interrupt vectors) and BASE_MEM_TOP
  to UPPER_MEM_END. Hopefully this keeps QEMU and Bochs happy.
This commit is contained in:
Jorrit Herder
2005-07-21 18:36:40 +00:00
parent 8d3e390bda
commit f0594a9e6d
22 changed files with 157 additions and 161 deletions
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kernel/table.c
+10 -11
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@@ -19,12 +19,12 @@
* or PRIVATE. The reason for this is that extern variables cannot have a
* default initialization. If such variables are shared, they must also be
* declared in one of the *.h files without the initialization. Examples
* include 'tasktab' (this file) and 'idt'/'gdt' (protect.c).
* include 'system_image' (this file) and 'idt' and 'gdt' (protect.c).
*
* Changes:
* Nov 10, 2004 removed controller->driver mappings (Jorrit N. Herder)
* Oct 17, 2004 updated above and tasktab comments (Jorrit N. Herder)
* May 01, 2004 included p_sendmask in tasktab (Jorrit N. Herder)
* May 01, 2004 changed struct for system image (Jorrit N. Herder)
*/
#define _TABLE
@@ -59,22 +59,21 @@ PUBLIC char *t_stack[TOT_STACK_SPACE / sizeof(char *)];
* mask, and a name for the process table. For kernel processes, the startup
* routine and stack size is also provided.
*/
#define IDLE_F (PREEMPTIBLE | BILLABLE)
#define USER_F (PREEMPTIBLE | RDY_Q_HEAD)
#define USER_F (PREEMPTIBLE | BILLABLE | RDY_Q_HEAD)
#define SYS_F (PREEMPTIBLE | SYS_PROC)
#define TCB_F (SYS_PROC) /* trusted computing base */
#define TASK_F (SYS_PROC)
#define IDLE_T 32 /* ticks */
#define USER_T 8 /* ticks */
#define SYS_T 16 /* ticks */
PUBLIC struct system_image image[] = {
{ IDLE, idle_task, IDLE_F, IDLE_T, IDLE_Q, IDLE_S, EMPTY_CALL_MASK, 0, "IDLE" },
{ CLOCK, clock_task, TCB_F, SYS_T, TASK_Q, CLOCK_S, SYSTEM_CALL_MASK, 0, "CLOCK" },
{ SYSTEM, sys_task, TCB_F, SYS_T, TASK_Q, SYSTEM_S, SYSTEM_CALL_MASK, 0, "SYS" },
{ HARDWARE, 0, 0, SYS_T, TASK_Q, HARDWARE_S, EMPTY_CALL_MASK, 0,"KERNEL" },
{ PM_PROC_NR, 0, TCB_F, SYS_T, 3, 0, SYSTEM_CALL_MASK, 0, "PM" },
{ FS_PROC_NR, 0, TCB_F, SYS_T, 3, 0, SYSTEM_CALL_MASK, 0, "FS" },
{ IDLE, idle_task, USER_F, IDLE_T, IDLE_Q, IDLE_S, EMPTY_CALL_MASK, 0, "IDLE" },
{ CLOCK, clock_task, TASK_F, SYS_T, TASK_Q, CLOCK_S, SYSTEM_CALL_MASK, 0, "CLOCK" },
{ SYSTEM, sys_task, TASK_F, SYS_T, TASK_Q, SYSTEM_S, SYSTEM_CALL_MASK, 0, "SYS" },
{ HARDWARE, 0, TASK_F, SYS_T, TASK_Q, HARDWARE_S, EMPTY_CALL_MASK, 0,"KERNEL" },
{ PM_PROC_NR, 0, SYS_F, SYS_T, 3, 0, SYSTEM_CALL_MASK, 0, "PM" },
{ FS_PROC_NR, 0, SYS_F, SYS_T, 3, 0, SYSTEM_CALL_MASK, 0, "FS" },
{ IS_PROC_NR, 0, SYS_F, SYS_T, 2, 0, SYSTEM_CALL_MASK, 0, "IS" },
{ TTY, 0, SYS_F, SYS_T, 1, 0, SYSTEM_CALL_MASK, 0, "TTY" },
{ MEMORY, 0, SYS_F, SYS_T, 2, 0, SYSTEM_CALL_MASK, 0, "MEMORY" },